Sash-holder



(NoModel.) F. L. ROSENTRETER.

SASH HOLDER.

No.v 379 664.

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`iNTTEn STATES PATENT CEETEEO FRANK L. ROSENTEETER, OF CLEVELAND, OHIO, ASSIGNOR TO THE ANDRUS MANUFACTURING COMPANY, OE ROCHESTER, NEW YORK.

SASH-HOLDER.

SPECIFICATION forming part of Letters Patent No. 379,664, dated March 20, 1888.

(No model.)

To @ZZ whom it may concern:

Be it known that I, FRANK L. ROSENTRETER, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in \Vindo\v-Sash Fasteners 5 andl do hereby declare that the following is a full, clear, and exact description thereof', reference being hadto the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification, in which- Figure l is aside view of my improved sashlock applied for use and closed. Fig. 2 is a similar view ofthelock open. Fig. 3 is a horizontal section on line u: x, Fig. l. Fig. 4 is a similar section on line 1/ y, Fig. 2. Figs. 5, 6, 7, and S are details.

This invention relates to improvements in sash locks or fasteners; and it has for its objects to provide a lock in which the engagingplate will be quickly moved initially before its locking devices are engaged, and also to simplify the construct-ion ofthe lock.

The invention consists in the peculiar and novel construction and arrangement of the component parts of the lock, hereinafter described, illustrated in the drawings, and particularly specified in the claims hereto appended.

Referring to the drawings by letter, XV designates a window-sash, to a proper point on one side of which issecured myimproved lock. This lock is composed of a base supportingpiece, A, a sliding engaging plate, E, and an actuating cam piece, l, which are constructed as follows: Piece A consists of a rectangular block, a, which is made hollow for lightness, and which has atits ends the perforated ears B for the passage of proper retaining-screws, by which the base-piece A is secured, as shown, to a window-sash. The ears B are provided with rearward extensions, b, for the purpose of preventing rocking or lateral turning of base-piece A. On top of block a are formed two upstanding ribs, C C, which extend rearward a short distance, and their rear ends converge, as shown, for a purpose hereinafter explained. On the under surface of block a is formed a semicircular groove, D, and near therear end of one rib C, on its lower surface, is a lug, d, hereinafter referred t0.

The engagingplate E consists of a rectangular hollowed shell, e, which is adapted to fit and move longitudinally over the ribs C of base-piece A, the side walls of the shell e be ing properly reduced, as shown. At thefront edge of shell e is the binding plate or edge F, and near its rear end is an upstanding pin, G, the lower sides of which are squared and form part of a guide rib or ribs, g, which extend from said pin to the rear end of shell e and are hereinafter referred to.l At the front of shell e, and extending rearward nearly to pin G, are formed two parallel ribs, H, which are arranged a distance apart corresponding to the ribs C C of base-piece A, by which latter they are embraced and engaged, so as to guide engaging-plate E in its movements over basepiece A. The ends ol' ribs C C converge, as described, and are adapted to embrace and engage the ribs g, so that the engaging-plate E will be steadily and firmly guided on basepiece A.

The cani-piece I consists of a concentric disk, i, from which extends a proper handle, J. This disk z' is centrally perforated, and is adapt ed to be placed upon and loosely riveted by pin G, thereby securing the cam-piece 1 to engaging-plate E. On the upper surface of disk t are formed the pair of lugs K k and the convolute-bend cam L, which extends from apoint near the pivot of the disk to a point near the periphery of the same about diametrically opposite its starting-point. The lugs Kk are on the diametrically-opposite side ot the pivot of disk i from cam L, and the lugK is elongated, as shown, for apurpose hereinafter explained.

To put the lock together, engaging-plate E is placed upon base-piece A, so that their respective ribs H and C engage, as described, and base-piece A is slid toward the rear end of engagingplate E until its movement is stopped by pin G. Vhen thus placed, the groove D in base-piece A will be concentric to pin G, and the lug (l also lies in close relation thereto. The canrpiecc I is then placed on pin G and turned until its cam L engages in groove D, and is then riveted on pin G. Then thus adjusted, the parts stand in the position shown in Fig. 1, and cam L has passed partially out of groove D, and the lugs K k are entirely removed from lug d. The parts are then IOO in locking position, and to retract the engaging-plate E the cam-piece I is retracted. This movement causes the outer edge of cam L to bind against the outer edge of groove D and move the engaging-plate'Einward, this action continuing until cam L disengages groove D. Simultaneously with the disengagement of the cam and groove the lugs K k embrace and engage the lug d, and the lug K, owing to its distance from the center, causes a more rapid retraction of the engaging-plate E through lug d, as is evident, than was effected by cam L.

Similarly, upon throwing the engaging-plate i E forward by turning disk i the lugs K lc iirst engage with lug d and start the engaging-plate E forward rapidly for a short distance, when they disengage, and the cam L, by its inner face, simultaneously engages against the inner wall of groove D, and more slowly but powerfully moves the engagingplate E forward. The situation of the cam L in relation to its pivot on engaging-plate E and engagement with base-piece A is such that pressure eX- erted upon the binding -plate F, and from thence to base-piece A, through cam L and groove D, will be in a direct line taken from the pivot-pin G through the cam and its point of engagement withgroove D, so that after the cam L has engaged said groove the locking can be at once effected without necessitating the full .movement of the handle J.

It will be observed that the cam-piece I is pivoted upon and consequently moves with the engaging-plate E, while the base-pieceA only is stationary; and by thus arranging the parts the engaging-plate E forms the cover or outer portion`i of the lock, and can be made highly ornamental and of varying forms without effecting its working, and, further, that all the working parts of the lock are protected, and no unsightly riveting necessary, and that the engaging-plate E is entirely exposed to view both when locked or unlocked. It will further be observed that by arranging the lugs K la farther from or nearer to the center of disk a greater orless amount of quick initial movement can be imparted to engaging-plate E before the cam L is engaged. Y

The handle J is bent, as shown, so that when the lock is retracted its upper end stands almost horizontal and its part j abnts against the upper end of base-piece A. The handle thus forms a convenient and ornamental knob or finger-piece by which the sash can be elevated or lowered.

Having described my invention, I claiml. In a sash-lock, the combination of a supporting fixed base-piece, A, secured to the window-sash and provided with extended guideribs on its outer surface and with a semicircular groove on its under surface, with a sliding engaging-plate, E, fitting over the fixed piece and provided with ribs engaging with the ribs thereof, and having pin G at its rear end and a binding-plate on its front end, and a campiece pivoted upon the pin G below the extensions of the ribs of base-piece A, and having a cam, L, engaging in the groove of said base-piece, all constructed and arranged sub,- stantially in the manner and for the purpose described. 2. In a sash-lock, the combination vof the base-piece A, havinggroove D and lug d, and extended ribs C G, with the engaging-plate E, having ribs Hg and pin G, and the cam-piece I, pivoted upon pin G and having the lugs K la, adapted to engage lug d, and cam L, for engaging groove D, al1 constructed and arranged substantially as and for the purpose described.

In testimony that I claim the foregoing as my own Iafx my signature in presence of two witnesses.

FRANK L. ROSENTRETER. Witnesses:

A. E. DowELL, l F. T. F. JoHNsoN. 

